Flowers missed last week's win over Seattle with a groin injury, while Allen was also dealing with a groin injury. Linebacker Jerry Attaochu (hamstring) and safety Jahleel Addae (hamstring) are also active.

Buffalo will again be without starting linebacker Keith Rivers, who suffered a groin injury in the opener in Chicago. The Bills will have wide receiver Robert Woods. And tight end Lee Smith makes his season debut after missing two games with a toe injury.